SQL Server 基础之《学生表-教师表-课程表-选课表》（二）

CREATE TABLE tblStudent 
  ( 
     StuId   INT, 
     StuName nvarchar(32), 
     StuAge  INT, 
     StuSex  nvarchar(8) 
  ) 

CREATE TABLE tblCourse 
  ( 
     CourseId    INT, 
     CourseName nvarchar(32), 
     TeaId    INT 
  ) 

CREATE TABLE tblScore 
  ( 
     StuId   INT, 
     CourseId    INT, 
     Score INT 
  ) 

CREATE TABLE tblTeacher 
  ( 
     TeaId    INT, 
     TeaName nvarchar(16) 
  )

  
  insert into tblStudent select 1,N‘刘一‘,18,N‘男‘ union all
 select 2,N‘钱二‘,19,N‘女‘ union all
 select 3,N‘张三‘,17,N‘男‘ union all
 select 4,N‘李四‘,18,N‘女‘ union all
 select 5,N‘王五‘,17,N‘男‘ union all
 select 6,N‘赵六‘,19,N‘女‘ 

 
 insert into tblTeacher select 1,N‘叶平‘ union all
 select 2,N‘贺高‘ union all
 select 3,N‘杨艳‘ union all
 select 4,N‘周磊‘
 
 insert into tblCourse select 1,N‘语文‘,1 union all
 select 2,N‘数学‘,2 union all
 select 3,N‘英语‘,3 union all
 select 4,N‘物理‘,4
 
 insert into tblScore 
 select 1,1,56 union all 
 select 1,2,78 union all 
 select 1,3,67 union all 
 select 1,4,58 union all 
 select 2,1,79 union all 
 select 2,2,81 union all 
 select 2,3,92 union all 
 select 2,4,68 union all 
 select 3,1,91 union all 
 select 3,2,47 union all 
 select 3,3,88 union all 
 select 3,4,56 union all 
 select 4,2,88 union all 
 select 4,3,90 union all 
 select 4,4,93 union all 
 select 5,1,46 union all 
 select 5,3,78 union all 
 select 5,4,53 union all 
 select 6,1,35 union all 
 select 6,2,68 union all 
 select 6,4,71